Commit Graph

56520 Commits

Author SHA1 Message Date
FUJITA Tomonori c13e556647 [SCSI] libsas: convert to use the data buffer accessors
- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-29 12:50:54 -05:00
FUJITA Tomonori 41ce639a1c [SCSI] cciss: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Mike Miller <Mike.Miller@hp.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-29 11:22:13 -05:00
Eric Sesterhenn fb119935e1 [SCSI] sg: remove unnecessary check
coverity spotted this (cid #758).  All callers dereference sfp, so we dont
need this check.  In addition to this, we dereference it earlier in the
function.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-28 09:08:32 -05:00
FUJITA Tomonori deff2627cd [SCSI] arcmsr: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 22:28:21 -05:00
FUJITA Tomonori 22c1a6600a [SCSI] aic7xxx_old: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 21:42:56 -05:00
FUJITA Tomonori 85289f2efa [SCSI] tmscsim: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 16:11:01 -05:00
Adrian Bunk 70c8d89776 [SCSI] advansys: cleanups
- remove the unneeded advansys.h
- remove the unused advansys_setup()
- make needlessly global functions static

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 15:05:10 -05:00
FUJITA Tomonori d7dea2cf80 [SCSI] sbp2: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 13:10:08 -05:00
Jeff Garzik 6cad75a61d [SCSI] fdomain: fix PCMCIA-related warnings
fdomain is one of those drivers that is compiled twice, once for PCMCIA
and once for non-PCMCIA.  The resultant two-driver setup leaves a bit of
dead code and data in the non-PCMCIA case, which gcc complains about.

Shuffle ifdefs a bit to eliminate the conditionally-dead code, and
the compiler warnings.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 12:59:28 -05:00
Christoph Hellwig 565bae6a4a [SCSI] 53c7xx: kill driver
It's been more than enough time now to try to get the new m68k drivers
into the tree.  Let's remove the old ones and we can remerge the new
glue once it's ready.  Given that there are patches to rename two out
of the three drivers in m68k CVS and all of them need a lot of
codingstyle love anyway that's probably the better strategy to begin
with.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kars de Jong <jongk@linux-m68k.org>
Cc: linux-m68k@vger.kernel.org
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-27 12:52:29 -05:00
FUJITA Tomonori ddc914c741 [SCSI] BusLogic: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:21:37 -05:00
FUJITA Tomonori bc1ebfba1a [SCSI] qlogicfas408: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:21:09 -05:00
FUJITA Tomonori fea97f9ab2 [SCSI] u14-34f: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:19:04 -05:00
FUJITA Tomonori d178671356 [SCSI] ultrastor: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:18:38 -05:00
FUJITA Tomonori e7d6cf55ea [SCSI] wd7000: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:18:10 -05:00
FUJITA Tomonori 58e2a02eb1 [SCSI] eata: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:13:55 -05:00
FUJITA Tomonori a258c85d08 [SCSI] initio: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:13:27 -05:00
FUJITA Tomonori c66cc13c16 [SCSI] aha1740: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:12:56 -05:00
FUJITA Tomonori 985c0a7277 [SCSI] a100u2w: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:12:34 -05:00
FUJITA Tomonori e1eaf46009 [SCSI] fdomain: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:11:52 -05:00
FUJITA Tomonori 9482ef855e [SCSI] sym53c500_cs: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:09:22 -05:00
FUJITA Tomonori 772a5c3f3b [SCSI] sym53c416: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:08:50 -05:00
FUJITA Tomonori 03cde46b6b [SCSI] NCR53c406a: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:08:20 -05:00
FUJITA Tomonori 646158c203 [SCSI] mac53c94: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:07:50 -05:00
FUJITA Tomonori 5f60ef6ac7 [SCSI] ibmmca: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 16:30:17 -05:00
FUJITA Tomonori 4c688fc7df [SCSI] aic79xx: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 16:30:12 -05:00
FUJITA Tomonori 3a57c4a5aa [SCSI] aic7xxx: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 16:30:08 -05:00
FUJITA Tomonori 3258a4d569 [SCSI] 53c700: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 16:30:04 -05:00
FUJITA Tomonori 824d7b570b [SCSI] scsi_lib: add scatter/gather data buffer accessors
This adds a set of accessors for the scsi data buffer. This is in
preparation for chaining sg lists and bidirectional requests (and
possibly, the mid-layer dma mapping).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 16:29:59 -05:00
James Smart 9ef3e4a452 [SCSI] fc_transport: fix sysfs deadlock on vport delete
When the vport attribute "delete" is used to delete the vport, sysfs
deadlocks waiting for the write to complete, which is waiting for the
sysfs teardown to complete. Moved this effort to a work_q element.

Took the opportunity to make some other cosmetic changes:
 - removed tabs in Doc file - replaced with expanded spaces
 - minor copyright text and author text updates
 - removed a bunch of trailing whitespace

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:58 -05:00
David C Somayajulu bee4fe8e63 [SCSI] qla4xxx: ql4_os.c bugfixes
Free memory resources after invoking free_irq() in
qla4xxx_free_adapter(). QLA4xxx has two pci functions per port
(Ethernet and iSCSI). When one of these PCI functions issues a HBA
reset, all other functions are notified and need to acknowledge and
re-initialize. During module qla4xxx_remove_adapter() gets
invoked. This function needs to wait if it is currently responding to
a reset from another function.

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:53 -05:00
David C Somayajulu c0e344c9b7 [SCSI] qla4xxx: ql4_mbx.c remove dead code bugfixes
All all inbound mbx registers for all mbx commands. Remove dead code.

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:49 -05:00
David C Somayajulu 401425b1ea [SCSI] qla4xxx: ql4_isr.c support for new mbx cmds
Add support to log all AENs and service mbx cmd completions for QLA4032

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:44 -05:00
David C Somayajulu e08c182cba [SCSI] qla4xxx: update rev num and misc cleanup
Clean up and update version number

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:40 -05:00
David C Somayajulu 92b7273608 [SCSI] qla4xxx: ql4_init.c bugfixes
In qla4xxx_get_ddb_entry() and qla4xxx_add_device_dynamically()
differentiate between a target which has been newly added vs a target
which went offline temporarily and is online again.  In
qla4xxx_build_ddb_list() firmware ddb state needs to be updated by
calling qla4xxx_get_ddb_entry(). Fix qla4x00_pci_config() and clean up
code.

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:35 -05:00
David C Somayajulu b285431657 [SCSI] qla4xxx: ql4_fw.h add support for qla4032
Add support for QLA4032 which supports IPv6

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:31 -05:00
David C Somayajulu 5c8bfc9449 [SCSI] qla4xxx: ql4_def.h log all AENs and cleanup
Add support for logging all AENs and clean up

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:27 -05:00
David C Somayajulu 0187106664 [SCSI] qla4xxx: ql4_dbg.c remove dead code
Remove dead code

Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:47:22 -05:00
Martin Bligh de5952e91c [SCSI] megaraid: fix compiler warnings
The user ioctl mailbox can only support a 32 bit address for the
commands structure.  This is fine, since the area it's pointing to is
allocated with pci_alloc_consistent(), so it should be physically <
4GB.  Thus kill the ptr to u32 conversion warnings on 64 bit.

Signed-off-by: Martin J. Bligh <mbligh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Patro, Sumant" <Sumant.Patro@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 11:46:38 -05:00
Adrian Bunk c6a6c81cfd [SCSI] ips: remove kernel 2.4 code
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:14:41 -05:00
Adrian Bunk 6a31a8a651 [SCSI] nsp32: remove kernel 2.4 code
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: GOTO Masanori <gotom@sanori.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:13:51 -05:00
Andrew Morton 702809ce9b [SCSI] ncr5380 warning fixes
squish these:

drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used
drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used
drivers/scsi/NCR5380.c:633: warning: 'NCR5380_print_options' defined but not used
drivers/scsi/NCR5380.c:708: warning: 'NCR5380_proc_info' defined but not used
drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used
drivers/scsi/NCR5380.c:579: warning: 'NCR5380_probe_irq' defined but not used
drivers/scsi/NCR5380.c:360: warning: 'phases' defined but not used
drivers/scsi/NCR5380.c:708: warning: 'notyet_generic_proc_info' defined but not used
drivers/scsi/NCR5380.c:708: warning: 'notyet_generic_proc_info' defined but not used

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:13:25 -05:00
Jeff Garzik 476834c25a [SCSI] aacraid,qla2xxx: use irq_handler_t where appropriate
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:12:47 -05:00
Amol Lad 730a646ddf [SCSI] NCR5380: Replace yield() with a better alternative
Replaced yield() with cond_resched()

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:11:00 -05:00
James Bottomley 355dfa1bc8 [SCSI] scsi_error: send the sense buffer down without copying
Now that the block submission path correctly bounces, we can simply
use the command sense_buffer to send to retrieve sense information and
junk the unnecessary page allocation.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:10:02 -05:00
Bernhard Walle a6123f1429 [SCSI] sd: remove __GFP_DMA
After 821de3a27b, it's not necessary to
alloate a DMA buffer any more in sd.c.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-24 09:09:09 -05:00
Thomas Bogendoerfer 352e921f0d [SCSI] jazz_esp: converted to use esp_core
Use new esp_scsi for JAZZ SCSI host adapter driver

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-22 11:12:22 -05:00
Alan Cox 72d39fea90 [SCSI] initio: Convert into a real Linux driver and update to modern style
This is a mix of a grand clean up I did and a reworking of the hotplug
support by Christoph. In testing it works as well as the previous code
did (that is -quite badly-) but we can now read it and as it settles in
actually debug the long standing problems it shares with the old driver.

Signed-off-by: Alan Cox <alan@redhat.com>

From Christoph:

removal of the BSD license is also fine with me, but should really
get a mention in the changelog aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-22 11:08:56 -05:00
Salyzyn, Mark 9d399cc7fe [SCSI] aacraid: add support for FUA
Back in the beginning of last year we disabled mode page 8 and mode page
3f requests through device quirk bits instead of enhancing the driver to
respond to these mode pages because there was no apparent added value.

The Firmware that supports the new communication commands supports the
ability to force a write around of the adapter cache on a command by
command basis. In the attached patch we enable mode page 8 and 3f and
spoof the results as needed in order to *convince* the layers above to
submit writes with the FUA (Force Unit Attention) bit set if the file
system or application requires it, if the Firmware supports the write
through, or instead to submit a SYNCHRONIZE_CACHE if the Firmware does
not. The added value here is for file systems that benefit from this
functionality and for clustering or redundancy scenarios.

Caveats: By convince, we are responding with a minimal short 3 byte
content mode page 8, with only the data the SCSI layer needs and that we
can fill confidently. Applications that require the customarily larger
mode page 8 results may be confused by this(?). The FUA, or the
SYNCHRONIZE_CACHE only affect the cache on the controller. Our firmware
by default ensure that the underlying physical drives of the array have
their cache turned off so normally this is not a problem.

This attached patch is against current scsi-misc-2.6 and was unit tested
on RHEL5. Since this is a feature enhancement, it should not be
considered for any current stabilization efforts.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-22 10:52:21 -05:00
Christoph Hellwig 0f06bb34f2 [SCSI] aha152x: use wait_for_completion_timeout
Use wait_for_completion_timeout instead a semaphore + timer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-22 10:50:19 -05:00